GB1105391A – Improvements in guns
– Google Patents
GB1105391A – Improvements in guns
– Google Patents
Improvements in guns
Info
Publication number
GB1105391A
GB1105391A
GB29238/66A
GB2923866A
GB1105391A
GB 1105391 A
GB1105391 A
GB 1105391A
GB 29238/66 A
GB29238/66 A
GB 29238/66A
GB 2923866 A
GB2923866 A
GB 2923866A
GB 1105391 A
GB1105391 A
GB 1105391A
Authority
GB
United Kingdom
Prior art keywords
gun
recesses
cartridge
case
width
Prior art date
1965-07-09
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB29238/66A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brevets Aero Mecaniques SA
Original Assignee
Brevets Aero Mecaniques SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1965-07-09
Filing date
1966-06-29
Publication date
1968-03-06
1966-06-29
Application filed by Brevets Aero Mecaniques SA
filed
Critical
Brevets Aero Mecaniques SA
1968-03-06
Publication of GB1105391A
publication
Critical
patent/GB1105391A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
239000004429
Calibre
Substances
0.000
abstract
1
239000007789
gas
Substances
0.000
abstract
1
239000000843
powder
Substances
0.000
abstract
1
Classifications
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41—WEAPONS
F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
F41A21/22—Barrels which have undergone surface treatment, e.g. phosphating
B—PERFORMING OPERATIONS; TRANSPORTING
B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
C—CHEMISTRY; METALLURGY
C21—METALLURGY OF IRON
C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
C21D9/08—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes
C21D9/10—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes shotgun barrels
C—CHEMISTRY; METALLURGY
C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F41—WEAPONS
F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
F41A21/12—Cartridge chambers; Chamber liners
Abstract
1,105,391. Gun cartridge chamber. BREVETS AERO-MECANIQUES S.A. 29 June, 1966 [9 July, 1965], No. 29238/66. Heading F3C. [Also in Division B3] In a gun cartridge chamber 1, the inner wall is provided with at least one recess into which can flow the burnt powder gases. In the case of an automatic gun of 20 mm. calibre, the recesses may be 0À5 mm. deep by 1 mm. wide. The recesses end at a distance of 35 mm. ahead of the rear end of the cartridge case and start at the front, downstream of the front edge of the cartridge ease 3, in each case forming a wall (6) at right angles to the gun axis, Figs. 2, 3 (not shown). The recesses may be of constant width, tapered in width over a part of their length or stepped in width.
GB29238/66A
1965-07-09
1966-06-29
Improvements in guns
Expired
GB1105391A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
LU49038
1965-07-09
Publications (1)
Publication Number
Publication Date
GB1105391A
true
GB1105391A
(en)
1968-03-06
Family
ID=19724368
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB29238/66A
Expired
GB1105391A
(en)
1965-07-09
1966-06-29
Improvements in guns
Country Status (8)
Country
Link
US
(1)
US3382556A
(en)
BE
(1)
BE683293A
(en)
CH
(1)
CH450965A
(en)
DE
(1)
DE1288486B
(en)
ES
(1)
ES328833A1
(en)
GB
(1)
GB1105391A
(en)
LU
(1)
LU49038A1
(en)
NL
(1)
NL6609595A
(en)
Families Citing this family (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE3300175C2
(en)
*
1983-01-05
1986-06-05
Wolfgang Th. Dipl.-Ing. 7238 Oberndorf Wegwerth
Process for the manufacture of gun barrels
US6817132B1
(en)
2003-06-09
2004-11-16
On Target Technologies, Llc
Barrel chambering method and apparatus
US8938903B2
(en)
*
2011-07-11
2015-01-27
Mark C. LaRue
Firearm barrel having cartridge chamber preparation facilitating efficient cartridge case extraction and protection against premature bolt failure
US20140260945A1
(en)
*
2013-03-15
2014-09-18
Frank DeSomma
Grooved firearm chamber
Family Cites Families (5)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE739852C
(en)
*
1942-02-08
1943-10-30
Rheinmetall Borsig Ag
Gun barrel in which the cartridge chamber or a part of it is formed by a part made as a single part and interchangeably connected to the barrel
US2464323A
(en)
*
1946-03-13
1949-03-15
Gen Motors Corp
Punch for fluting gun-barrel chambers
NL93457C
(en)
*
1955-12-30
GB856983A
(en)
*
1958-06-18
1960-12-21
Rolls Royce
Improvements in the formation of holes by spark erosion
US3194938A
(en)
*
1962-10-09
1965-07-13
L C Miller Company
Method for producing parts by electrical erosion
1965
1965-07-09
LU
LU49038D
patent/LU49038A1/xx
unknown
1966
1966-06-24
US
US560152A
patent/US3382556A/en
not_active
Expired – Lifetime
1966-06-25
DE
DEB87720A
patent/DE1288486B/en
active
Pending
1966-06-28
BE
BE683293D
patent/BE683293A/xx
unknown
1966-06-29
CH
CH943866A
patent/CH450965A/en
unknown
1966-06-29
GB
GB29238/66A
patent/GB1105391A/en
not_active
Expired
1966-07-08
NL
NL6609595A
patent/NL6609595A/xx
unknown
1966-07-08
ES
ES0328833A
patent/ES328833A1/en
not_active
Expired
Also Published As
Publication number
Publication date
NL6609595A
(en)
1967-01-10
DE1288486B
(en)
1969-01-30
ES328833A1
(en)
1967-04-16
BE683293A
(en)
1966-12-01
LU49038A1
(en)
1967-01-09
US3382556A
(en)
1968-05-14
CH450965A
(en)
1968-05-15
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None